Chapter 16 PLC Function
CT2000 Series
16-59
API
SUB
S1
S2
D
BIN subtraction
21
D
P
Bit device
Word device
16-bit command (7 STEP)
SUB
Continuous
execution type
SUBP
Pulse
execution type
32-bit command (13 STEP)
DSUB
Continuous
execution type
DSUBP
Pulse
execution type
Flag signal: M1020 Zero flag
M1021 Borrow flag
M1022 Carry flag
Please refer to the following
supplementary explanation
X Y M K H KnX
KnY
KnM
T
C
D
S1
*
*
*
*
*
*
*
*
S2
*
*
*
*
*
*
*
*
D
*
*
*
*
*
Notes on operand usage: none
S1
: Minuend.
S2
: Subtrahend.
D
: Difference.
Using two data sources: The result of subtraction of
S1
and
S2
using the
BIN method is stored in
D
.
The highest bit of any data is symbolized as bit 0 indicating (positive) 1 indicating
(negative), enabling the use of algebraic subtraction operations.
Flag changes connected with subtraction.
1. When calculation results are 0, the zero flag M1020 will be On.
2. When calculation results are less than –32,768, the borrow flag M1021 will be
On.
3. When calculation results are greater than 32,767, the carry flag M1022 will be
On.
8. 16-bit BIN subtraction: When X0=On, the content of D10 is subtracted from the
content of D0, and the difference is stored in D20.
X0
D0
D10 D20
SUB
Summary of Contents for CT2000 Series
Page 5: ...Chapter 1 Introduction CT2000 Series 1 2 Model Name VFD 750 CT 43 F 00 A6 Serial Number...
Page 22: ...Chapter 1 Introduction CT2000 Series 1 19 Digital Keypad KPC CC01 KPC CE01 Unit mm inch...
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Page 41: ...Chapter 4 Wiring CT2000 Series 4 6 This page intentionally left blank...
Page 71: ...Chapter 7 Optional Accessories CT2000 Series 7 18 Wall Mounting Embedded Mounting...
Page 87: ...Chapter 8 Optional Cards CT2000 Series 8 8 PG Card intallation...
Page 88: ...Chapter 8 Optional Cards CT2000 Series 8 9 Disconneting the extension card...
Page 92: ...Chapter 8 Optional Cards CT2000 Series 8 13 PG2 Wiring Diagram...
Page 95: ...Chapter 8 Optional Cards CT2000 Series 8 16 PG2 Wiring Diagram...
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Page 259: ...Chapter 12 Description of Parameter Settings CT2000 Series 12 1 03 11...
Page 260: ...Chapter 12 Description of Parameter Settings CT2000 Series 12 1 03 12...
Page 263: ...Chapter 12 Description of Parameter Settings CT2000 Series 12 1 03 15...
Page 266: ...Chapter 12 Description of Parameter Settings CT2000 Series 12 1 03 18...
Page 397: ...Chapter 13 Warning Codes CT2000 Series 13 8 This page intentionally left blank...
Page 407: ...Chapter 14 Fault Codes and Descriptions CT2000 Series 14 10 This page intentionally left blank...
Page 489: ...Chapter 16 PLC Function CT2000 Series 16 48 LD X1 Load Contact a of X1 OUT Y1 Drive Y1 coil...
Page 592: ...Chapter 16 PLC Function CT2000 Series 16 151...
Page 594: ...Chapter 16 PLC Function CT2000 Series 16 153...
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